Gas saver for internal-combustion engines



Fe b. '9 1926.

H. ALLEC GAS SAVER FOR INTERNAL COMBUSTION ENGINES Filed Nov. 29, 1924 INVENTOR Henry (Lee W fiw %.mm

ATTO R N EY pasted Feb. 9,1926. a 1,572,701

UNITED STATES PATENT OFFICE.

HENRY ALLEG, OF STOCKTON, CALIFORNIA, ASSIGNOR OF ONE-THIRD TO JAMES A.

I FENNO AND ONE-THIRD TO JOHN IPISENTI, BOTH OF STOCKTON, CALIFORNIA.

GAS SAVER FOR IN TERNAL-COMBUSTION ENGINES.

Application filed November 29. 1924. Serial No. 752,894.

To all whom it may concern: tures are actuated by the suction induced Be it known that I, HENRY ALLEo, a with theoperation of the engine, and do citizen of France, residing at Stockton, not function when the engine is not running. county of San Joaquin, State of California, A still further object is to provide a dea have invented certain new and useful Im-' vice for the above purposes which may be 55 provements in Gas Savers for Internalreadily and easily installed on any motor Combustion Engines; and I do declare the vehicle without removing any parts which following to be a full, clear, and exact deare already provided thereon/ scription of the. same, reference being had A further object is to produce a simple to the accompanying drawing, and to the and inexpensive device and yetone which characters of reference marked thereon, Will be exceedingly effective for the purpose which form a part of this application for which it is designed. i

This invention relates to improvements These objects I accomplish by means of in motor vehicle accessories, andparticusuch structure and relative arrangement of 15 larly to gas saving devices for enabling parts as will fully appear by-a perusal of better and more eflicient operation of the the following specification and claims.

engine being obtained from a given quan- In the drawings similar characters of tity of fuel in the main tank than is otherreference indicate corresponding parts in wlse the case. the several views:

The principal object of my invention is Fig. l is a side outline of amotor veto provide a device of this character by, hicle chassis showing my device as installed means of which certain volatile fumes in in connection therewith. the main gas tank, and which are now Fig. 2 is a full sized sectional view of an wasted, will be utilized in the engine, thereautomatic suction actuated valve member.

'25 by giving an increased mileage per gallon Referring now more particularly to the of fuel actually drawn from the tank to the characters of reference on the drawings, the

carbureter. numeral '1 denotesthe engine of a motor ve- Of course such fumes are not present in hicle, 2 and 3 the intake and exhaust maniany quantity if the car has been standing folds thereof respectively, 4 the main gas 39 still for any length of time. When the tank of the vehicle and 5 the radiator car is travelling, however, even on smooth thereof.

roads, the gasoline in the tank is constantly My device comprises a hollow body 6 conagitated and a portion thereof leaves the nected at its upper end to a pipe 7 which, in

main body of the liquid and rises above the turn is connected to the intake manifold 2.

35 same as a highly volatile mist or fumes. Connected to the lower end of the body is Since nearly all tanks are provided with an a cross fitting 8, to the various ends of air bleed hole, these fumes are rapidly diswhich are connected tubes 9, l0 and 11 sipated into the atmosphere and are lost. which lead to the exhaust manifold 3, the

Another object of my invention is to protop .of the gas tank 4 and the top of the vide means arranged in connection with the radiator 5 respectively. gas saving feature of the device, for caus- A check ball 12, opening upwardly is ing any steam which may be in the radiafitted into the body above the cross 8 and tor to be fed into the engine, thereby aidnormally forms a closure'between the latter ing in eliminating and preventing the forand the body. A normally tightly closed mation of carbon. compression spring 14 isfixed at its lower A third object is to provide a means also end in the body and at such end surrounds arranged in connection with the above feaand projects above the passage 15, which tures for enabling much quicker warming extends through what may be considered a 50 up of the engine being had in cold weather wall 15' across the body above the ball 12.

than is ordinarily possible. All these fea- This spring projects into the body above ning, the ball is ofcourse seated and the spring is closed, providing an air tight closure between the cross 8 and pipe 7. When the engine is started and a tendency to vacuum is created in the intake manifold, a similar condition is obtained in the pipe 7 and body Q3. This tends' to cause the spring 14 to open up, thus establishing communication between the pipe 7 and passage 15. The greater the suction the greater will be the extent of opening of the spring and consequently the greater will be the open area between the passage 15 and pipe 7.

At the same time, irrespective of the extent of the spiing opening, the ball 12 will be'lifted from its seat causing a suction to be set up in the cross'8 and tubes 9, 10 and 11. Therefore any fumes in the tank 4 will be drawn into the engine through'the tube 10, as well as any steam in the radiator through the tube 11, and a certain amount of hot exhaust gases in the exhaust manifold 3 through the tube 9.

The gasoline fumes passing through the intake manifoldincrease the mileage of the car per gallon of fuel to a very marked degree, as I have found from experience, Any steam drawn into the manifold tends to keep the valves and cylinders free of carbon, as is well known,

The hot exhaust gases, had after a single explosion of the engine has taken place, aid materially in keeping the intake manifold warm at all times. This is of especial benefit when warming up the engine in cold weather. At the same time the size of the tube 9 is so small that a sufiicient quantity of such gases is not drawn into the manifold as would detrimentally dilute the main fuel mixture.

While it might appear at first glance that the ball 12 and spring 14 are merely check valves of different forms but having the same function, I found from experience that such is not the case. The ball 12 if used alone, while providing an air-tight seat, does not allow of any variation in the size of the passage area as 1s desirably had with different suctional pressures. The ball is either entirely clear of its seat or else it is firmly'seated.

The spring, on the other hand, enables a desired variation of passage area with different suctional pressures to be easily had, but cannot be depended upon to provide an actually air-tight clousure for the passage 15. Thus both the ball and spring, while cooperating with each other, have their independent functions.

The hot gases entering the manifold 2 from pipe 9 not only warm the manifold itself, but aid in causing the fuel mixture to be properly vaporized before entering the cylinders of the engine.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in de tail the present and preferred construction of .the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

1. A suction actuated check valve structure comprising a hollow body having an opening at one end adapted for connection to the intake manifold of a gas engine and having a passage leading from its opposite end, and a suction operated closure member for said passage mounted in the body and arranged to provide an opening from said passage to the manifold whose area constantly increases in proportion to an increase in suctional force.

2. A suction actuated check valve structure comprising a hollow body having an opening at one end adapted for connection to the intake manifold of a gas engine and having a passage leading from its opposite end, a closely wound compression spring fixed at one end in the body' and surrounding the passage into'the same, and a solid cap on the opposite end of the spring, said spring being opened by reason of a sectional pressuie through the opening, and set up in the b0 y.

' 3. A suction actuated check valve structure comprising a hollow body having an opening at one end adapted for connection to the intake manifold of a gas engine and having a passage leading from its opposite end, an orificed wall, in,the body a certain distance inwardly of the passage, a gravity seated and suction opened check valve for the passage between the latter and the wall, and asuction opened closure member for the wall orifice mounted in the body inwardly of said wall and surrounding the orifice therein; said closure member being arranged to provide between the wall orifice and the body therebeyond a passage whose area increases in proportion to an increase in suctional pressure.

4. A suction actuated check valve structure comprising a hollow body having an open ing at one end adapted for connection to the intake manifold of a gas engine and having a passage leading from its opposite end, an orificed wall in the body a certain distance inwardly of the passage, a gravity seated and 5 suction opened check valve for the passage between thelatter and the wall, a closely wound compression spring fixed at one end on the 'inner face of the wall and cap on the opposite, end of the spring; the

manifold-connection opening being so disposed that with a suction in said opening away from the body, the spring will be opened.- l V In testimony whereof I aflix my signature.

HENRY ALLEC. 

